EMP HAD JUST LOADED A METRIC TON BAG OF CLAY ONTO TRUCK AND WAS TRAVELING ON FORKLIFT TO GET ANOTHER BAG WHEN ANOTHER EE STEPPED FROM BEHIND A ROW OF BAGS STARTLING DRIVER CAUSING HIM TO APPL Y BRAKES TO FORKLIFT WHICH SLID ON WET CONCRETE FLOOR CAUSING THE FORKLIFT TO SLIDE JAMMING EE'SRIGHT FOOT WHICH HE WAS DEPRESSING BRAKE WITH. SPRAINED RIGHT ANKLE AND LEG PAIN.